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CVE-2026-28421

Vim has a heap-buffer-overflow and a segmentation fault

Published: 2/27/2026 Last updated: 5/28/2026 Reserved: 2/27/2026

Vim is an open source, command line text editor. Versions prior to 9.2.0077 have a heap-buffer-overflow and a segmentation fault (SEGV) exist in Vim's swap file recovery logic. Both are caused by unvalidated fields read from crafted pointer blocks within a swap file. Version 9.2.0077 fixes the issue.

CNA assigner: GitHub_M (a0819718-46f1-4df5-94e2-005712e83aaa) Requested by: n/a

Metrics

Version Score Severity Vector String
3.1 5.3 Medium CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

Opam packages affected (1)

conf-vim

Products affected (2)

Product Vendor Version
vim vim n/a
vim vim 4.7.2 on Windows 10 Version 1803 for x64-based Systems

References (8)